"In all likelihood there is a keyboard within a few feet of you. Inside that keyboard there probably is a circuit sheet that makes for a surprisingly durable and thin material for making a wallet.

Why? In taking apart electronics i find uses for most of the parts. Things which can not be reused go into scrap piles for recycling. But these sheets couldn't be easily reused and probably can not be recycled. I tried using overhead transparency sheets that had been printed on for a customized clear wallet pattern but the sheets mark when folded or creased. These circuit sheets are extremely durable.

You'll need:
A desktop computer keyboard (for the circuit sheet and a metal piece as a straight edge)
A screwdriver to open the keyboard
A ruler or tape measure
A cutting board or cutting mat
A razor knife
Sharp scissors
A roll of clear packing tape"